Neuralgic Amyotrophy and Hourglass Nerve Constriction/Nerve Torsion: Two Sides of the Same Coin? A Clinical Review

Giuseppe Granata, Fabiola Tomasello, Maria Ausilia Sciarrone, Vito Stifano, Liverana Lauretti, Marco Luigetti

Risultato della ricerca: Contributo in rivistaArticolo in rivista

Abstract

Neuralgic amyotrophy, also called Parsonage–Turner syndrome, in its classic presentation is a brachial plexopathy or a multifocal neuropathy, involving mainly motor nerves of the upper limb with a monophasic course. Recently, a new radiological entity was described, the hourglass constriction, which is characterized by a very focal constriction of a nerve, or part of it, usually associated with nerve thickening proximally and distally to the constriction. Another condition, which is similar from a radiological point of view to hourglass constriction, is nerve torsion. The pathophysiology of neuralgic amyotrophy, hourglass constriction and nerve torsion is still poorly understood, and a generic role of inflammation is proposed for all these conditions. It is now widely accepted that nerve imaging is necessary in identifying hourglass constrictions/nerve torsion pre-surgically in patients with an acute mononeuropathy/plexopathy. Ultrasound and MRI are useful tools for diagnosis, and they are consistent with intraoperative findings. The prognosis is generally favorable after surgery, with a high rate of good motor recovery.
Lingua originaleEnglish
pagine (da-a)1-11
Numero di pagine11
RivistaBrain Sciences
Volume14 (67)
DOI
Stato di pubblicazionePubblicato - 2024

Keywords

  • anterior interosseous nerve palsy
  • hourglass-like constriction
  • nerve torsion
  • neuralgic amyotrophy
  • neurolysis
  • posterior interosseous nerve palsy
  • radial nerve palsy

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